fugacious
adj.
"fleeing, likely to flee," 1630s, with -ous + Latin fugaci-, stem of fugax "apt to flee, timid, shy," figuratively "transitory, fleeting," from fugere "to flee" (see fugitive). Related: Fugaciously; fugaciousness; fugacity.
〔李〕[fug;-aciousa.] a.易逸去的； 短暂的 ←fug (L fugere)=to flee 逃
〔蒋〕[fug散，-acious形容词后缀，…的] 易逸去的，转瞬即逝的